Evaluate.43
A. 12
B. 7
C. 64
D. 4
Answer: C
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Use an ordered pair to identify each point on the given coordinate plane. State the quadrant or axis where each point lies.
A. A(-2, 2) in Quadrant II; B(5, -2) in Quadrant IV B. A(-2, 0) on the y-axis; B(-5, -2) in Quadrant III C. A(-2, 0) on the x-axis; B(5, -2) in Quadrant IV D. A(2, 0) on the x-axis; B(5, -2) in Quadrant IV
Solve the problem.An airline charter service charges a fare per person of $350 plus $30 for each unsold seat. The airplane holds 75 passengers. Let x represent the number of unsold seats and write an expression for the total revenue R for a charter flight.
A. R(x) = (75 - x)(350 + 30x) or 26,250 + 2250x - 30x2 B. R(x) = 75(350 + 30x) or 26,250 + 2250x C. R(x) = (75 - x)(350 + 30x) or 26,250 + 1900x - 30x2 D. R(x) = x(350 + 30x) or 350x + 30x2
Find the x- and y-intercepts of f.f(x) = -x2(x + 9)(x2 - 1)
A. x-intercepts: -9, 0, 1; y-intercept: -9 B. x-intercepts: -1, 0, 1, 9; y-intercept: 0 C. x-intercepts: -9, -1, 0, 1; y-intercept: 0 D. x-intercepts: -9, -1, 0, 1; y-intercept: -9
Solve and check the linear equation.-6[4x - 3 + 3(x + 1)] = -5x - 7
A. 
B. 
C. 
D. 